Battery Survey

The pages gives an overview of some of the information extracted from current raw survey data.

Battery Pack Capacity

The chart below shows the reported battery capacity versus miles driven for each of the
vehicles in the Model 3 survey. Battery capacity is measured by doing a full charge and
reading the "rated range" from the car, which is the estimated range if the car were
driven in the same conditions and parameters as used for the vehicle's official range
rating. Cars in the US and Canada are
rated using the EPA standard. Other countries use
the NEDC standard. Values in the chart are adjusted to be equivalent to the EPA standard
and reports in kilometers are converted to miles.

The vehicles are grouped by their battery pack size. Note that different models with the
same battery pack size may have slightly different EPA ratings for their full nominal
range (dual vs. single drive and performance versions).

Trend lines are shown for models with sufficient data available. This gives an idea of
what the data suggests is the average Model 3 experience. Note that the data includes some
vehicles which have had battery pack replacements (see the chart below) which may have
extended their capacity lifetime, so a more careful analysis is required to extract the
best model for battery pack longevity.

Click on a dot to see that vehicle's number and get a link to the report(s) for that
vehicle. Hover over a model label to highlight the dots for that group.

Loading chart…

Major Maintenance

The chart below shows the replacement rates for major components. Each bar represents the
percentage of vehicles which have reported one or more swaps of the corresponding
component.

Loading chart…

The table below shows the numbers for the major maintenance items. Most of the numbers
are represented on the chart above, except for the median odometer for the reported
vehicles by model year.

The median odometer values give a rough idea of how many miles the vehicles in each
group have been driven. Half of the vehicles in each year reported fewer miles than the
median and half reported more as of when last updated.

Model Year

Vehicles

Median OdoMiles

Drive UnitSwap %

BatterySwap %

ChargerSwap %

2017

1

750

0.0

0.0

0.0

2018

26

2,550

0.0

0.0

0.0

27

Survey Participation

The chart below shows the vehicles in the survey by model.

Loading chart…

The chart below shows the number of survey reports received each month.

Loading chart…

The chart below shows when the vehicles in the survey were most recently updated.
Bars on the right indicate vehicles that have been updated recently, bars on the left
show vehicles that haven't been recently updated.